BenQ TH671ST
#5 in Native 1080pFull review
A bright short throw 1080p projector for gaming in small rooms, for buyers who don’t need 4K or HDR.
Amazon $849$849
3.9/5
The brightest of Optoma’s compact short throw laser models, for golf simulators and game rooms where the projector has to sit close to the screen.
- 4,200 ISO 21118Brightness
- 1920 x 1080 (1080p)Native resolution
- laserLight source
- NoneStreaming
- 8.4 msInput lag
Check price at Amazon$1,299
Price checked October 29, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Fills a 100 inch screen from under four feet away
- Bright enough for a room with lights on or a golf simulator bay
- Very low lag at 120Hz for fast games
- Laser light needs no lamp changes
Cons
- No built-in streaming apps
- Not 4K, only accepts a 4K signal
- No automatic focus or keystone
How it scores
The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | GT2400HDR |
|---|---|
| Picture | |
| Brightness | 4,200 ISO 21118 |
| Native resolution | 1920 x 1080 (1080p) |
| Picture resolution | 1080p |
| Display | DLP |
| Light source | laser |
| Light source life | 30,000 hours |
| HDR | HDR10, HLG |
| Placement | |
| Throw | Short throw (0.5:1) |
| Largest image | 300 in |
| Autofocus | No |
| Auto keystone | No |
| Obstacle avoidance | No |
| Optical zoom | None |
| Streaming and gaming | |
| Built-in apps | None |
| Input lag | 8.4 ms |
| Top refresh rate | 120 Hz |
| HDMI ports | 2 |
| eARC | No |
| Speakers | 15 W |
| Build | |
| Battery | None |
| Fan noise | 29 dB |
| Power | 170 W |
| Dimensions | 10.79 x 8.5 x 4.49 in (W x D x H) |
| Weight | 6.6 lb |
| Released | 2026-03 |
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